A taxonomic reappraisal of the South American genus Holocalyx (Leguminosae, Papilionoideae)

  title={A taxonomic reappraisal of the South American genus Holocalyx (Leguminosae, Papilionoideae)},
  author={Vidal de Freitas Mansano and Marcelo Dias Machado Vianna Filho},
The tree genus Holocalyx (Leguminosae, Papilionoideae) is distributed in southern South America and inhabits moist forests or gallery forests of the Cerrado. It is poorly studied taxonomically in spite of its economic importance as material for tool handles, rustic furniture, and fuel wood. Holocalyx is characterized by flowers with a nearly truncate calyx, an actinomorphic corolla of five petals, an androecium of ten stamens, and a stipitate gynoecium positioned centrally within the flower… 
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Six living species of the genus Retrophyllum C.N. Page (Podocarpaceae) are revised and the typification of Nageia minor comprehensively discussed in an appendix, a key to the six species recognised is given.
A molecular phylogeny of the vataireoid legumes underscores floral evolvability that is general to many early-branching papilionoid lineages.
Luetzelburgia, Sweetia, Vatairea, and Vatairopsis are unequivocally resolved as the "vataireoid" clade and fruit and vegetative traits are found to be more phylogenetically conserved than many floral traits.


A Revision of the South American Genus Zollernia Wied-Neuw. & Nees (Leguminosae, Papilionoideae, Swartzieae)
The genus Zollernia is in need of revision, several species need to be newly circumscribed, and a key to all recognised taxa is required.
Phylogenetic Relationships of Basal Papilionoid Legumes Based Upon Sequences of the Chloroplast trnL Intron
Preliminary results indicate radical changes are necessary for papilionoid classification because Swartzieae, Sophoreae, and Dalbergieae are polyphyletic.
Composition of the Lecointea clade (Leguminosae, Papilionoideae, Swartzieae), a re-evaluation based on combined evidence from morphology and molecular data
The Lecointea clade sensu Herendeen, with the additional inclusion of Uribea, is monophyletic in all analyses and not to the Vatairea clade as recently proposed by Pennington & al.
Floral anatomy of the Lecointea clade (Leguminosae, Papilionoideae, Swartzieae sensu lato)
Flower and inflorescence anatomy and morphology of Exostyles, Harleyodendron, Holocalyx, Lecointea, and Zollernia (Leguminosae) were studied and anatomical characters are discussed according to their possible phylogenetic implications.
A phylogeny of the chloroplast gene rbcL in the Leguminosae: taxonomic correlations and insights into the evolution of nodulation.
Phylogenetic analysis of the chloroplast-encoded rbcL gene in Leguminosae are consistent with previous hypotheses in suggesting that the family as a whole is monophyletic, but that only two of its
A phylogeny of legumes (Leguminosae) based on analysis of the plastid matK gene resolves many well-supported subclades within the family.
Analysis of the matK data consistently resolves but modestly supports a clade comprising papilionoid taxa that accumulate canavanine in the seeds, which suggests a single origin for the biosynthesis of this most commonly produced of the nonprotein amino acids in legumes.
The history of Seasonally Dry Tropical Forests in eastern South America: inferences from the genetic structure of the tree Astronium urundeuva (Anacardiaceae)
Arguments that favour the existence of a previously more continuous formation of SDTF in eastern South America are provided.
Floral ontogeny of Lecointea, Zollernia, Exostyles, and Harleyodendron (Leguminosae: Papilionoideae: Swartzieae s.l).
Floral initiation and development were examined using scanning electron microscopy in Exostyles venusta, Harleyodendron unifoliolatum, Lecointea hatschbachii, and Zollernia ilicifolia, which are ontogenetically more similar to taxa of Sophoreae than to other Swartzieae that have been investigated.
Patterns of Species Distributions in the Dry Seasonal Forests of South America
Studies of the distributions of species of seasonal woodland habitats in South America by means of dot-mappung and phytosociological analyses indicate the presence of three nodal areas: the Caatingas nucleus of arid northeastern Brazil; the Misiones nucleus, which extends from Santa Cruz de la Sierra in Bolivia to Tucuman and the sierras of east Catamarca in northwestern Argentina.
Neotropical seasonally dry forests and Quaternary vegetation changes
A new vegetation model is proposed for some areas of the Ice-Age Amazon: a type of seasonally dry tropical forest, with rain forest and montane taxa largely confined to gallery forest, consistent with the distributions of contemporary seasonallydry tropical forest species in Amazonia and existing palynological data.